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2F holley carb mod?

Posted: Tue Jul 12, 2005 4:59 pm
by wopass
ok, i have a 40 :D iits the freekin best machine in the world :armsup: i have run it in standard 2F trim for 6000years :cool: cos its that old :? AND I JUST CANT KILL IT NO MATTER HOW HARD I TRY !

i now want to bolt a 2 barrel holley on it as i have heard this is one of the most popular and best mod to do to the power side of things and gets great results, so...

Q:what size 2 barrel is best ? i have been told the 350cfm is the go ?
Q:can someone who has done this post some pictures here for me please?
Q:the offroad kit for the holley, i have heard conflicting stories about them, some say they work fine and other people say they are shit ?

all info welcome :D

ohh, i have my standard 2F carb off sitting on the bench so i want to do this now :armsup:

:twisted: :twisted: MORE POWER :twisted: :twisted:

Posted: Tue Jul 12, 2005 6:43 pm
by plowy
ive heard that the best carby is the original one esecially for offroad use
were as the holley is needing frequent tuning and is crap offroad in regards to the fuel bowl keepin enough supply to run it


otherwise a sweat rig mate oh other option GO A DIESEL :armsup: :armsup: :armsup:

Posted: Tue Jul 12, 2005 11:38 pm
by Roktruk
I had a Holley 350 on the 2F - spent a day on a chassis dyno with a box of jets and power valves to tune it spot on. Heaps of power, sh!t on economy. BUT...point it more than about 15 degrees up a hill and it would flood. Left me hanging 1/2 way up Wombat Spur in a very nasty spot. Used to flood on the Stockton dunes. Eventually went back to a standard carby with the fuel return pipe, and an air cleaner from the NSW models (why they were different I don't know). This is large flat unit that sits on the rocker cover. This also made fitting the dual battery under the bonnet easy, using the tray from a Diesel 40.

Apparently mounting them backwards works, but is a nightmare on the linkages. 253 Quadrajet is ok, too, coz the fuel bowl is centrally mounted

Posted: Wed Jul 13, 2005 10:13 am
by DIRTY ROCK STAR
so is a 250 Holley too small in most opinions??

what cfm rating is a standard carby on a 2F?

my 2F seems to stall up hills anyways, although i find giving it a bit of hand throttle seems to help, is this common and anyway to overcome it or do i keep pulling on the handthrottle??

cheers...

Posted: Wed Jul 13, 2005 10:32 am
by Busiboy
I am looking to get rid of my holley and am looking and a rochester or gas.

I have a 307 though :armsup:

Best power fix ever

Posted: Tue Jul 17, 2007 12:13 pm
by wopass
Busiboy wrote:I am looking to get rid of my holley and am looking and a rochester or gas.

I have a 307 though :armsup:

Best power fix ever
well..... after a lot of heart ache and humming and harrring... i replaced the old standard 2f carb :cool: for a 600 holley and 350 chev :armsup:

so cool.... should have done it years ago :roll: